Design and characterization of a high temperature fiber-optic pressure transducer

Author

Berthold, J.W. ; Ghering, W.L. ; Varshneya, D.

Author_Institution

Babcock and Wilcox, Alliance, OH, USA

Volume

5

Issue

7

fYear

1987

fDate

7/1/1987 12:00:00 AM

Firstpage

870

Lastpage

876

Abstract

We have measured the pressure response of a high temperature pressure transducer fabricated from a super alloy. This transducer contains a microbend fiber-optic sensor to measure diaphragm deflection and a reference fiber to help reduce light source fluctuations caused by perturbations in the fiber leads. The transducer was characterized at pressures up to 22.8 MPa and temperatures to 430°C. The experimental data taken at constant temperature shows a 0.58 percent (of full scale pressure) minimum deviation between the fiber-optic pressure transducer output and output of a calibrated gage pressure transducer. Over the entire temperature range of $20-430\\deg$ C, the fiber-optic pressure transducer output exhibits a 1.2-percent (of full scale pressure) maximum deviation from calibrated pressure.

Keywords

Optical fiber transducers; Pressure transducers; Thermal factors; Acoustic sensors; Creep; Optical distortion; Optical fiber sensors; Optical fibers; Pressure measurement; Sensor phenomena and characterization; Silicon compounds; Temperature sensors; Transducers;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.1987.1075594

Filename

1075594